Graphite lubricator.



PATENTED NOV. 17, 1903.

R. PIELIGKE.

GRAPHITE LUBRIGATOR.

APPLICATION FILED JUNE 17. 1903..

N0 MODEL.

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UNITED STATES Patented November 17, 1903.

PATENT OFFICE.

GRAPHITE LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 744,101idated November 17, 1903.

7 Application filed June 17 1903. Serial No. 161,767. (No model.)

To all whom it may concern: I

Be it known that I, RUDOLF PIELIGKE,a. citizen of Germany, residing at New York city, (Bro'nx,) countyand State of New York, have invented certain new and useful Improvements in Graphite Lubricators, of which the following is a specification.

This invention relates to an improved in bricator by which graphite-powder is applied as a lubricant in the form of a fine dust, so

.that any clogging of the apparatus is prevented.

In the accompanying drawings, Figure 1 is a verticallongitudinal section of myimproved lubricator. Fig. 2 is a similar section of an air compressor to which the lubricator is applied, and Fig. 3 a vertical section through a I modification of the lubricator.

The letter a represents a cup communicating by conduit b, valve -chamber c, and con duit b with the cylinder d of an air-compressor A or with a steam-engineor other element to which the lubricant is to be supplied. The cup at is provided with an annular flange a, which constitutes the seat for the upper flanged end of a leather or other flexible bag e, having a foraminated rigid bottom 6 and adapted for the reception of graphite-powder. The bag 6 is influenced by a spring f, interposed between bottom 6 and an offset a of cup a. Upon the flanged top of bag 8' is fitted a lid g, having air-ducts g and inlet 9 for the graphite. A cover It, screwed into the upper threaded end of cup 0., bears upon lid g, and thus locks such lid, as Well as the upper end of the bag, in position. The cover 72 has an opening 71. for introducing the graphite, which opening may be closed by a cap 72.

Above the flange a. the cup a is provided with an annular channel a that communiw cates by-ducts 71, of cover h, air-space i, and ducts g with the interior of the bag 6 above the surface of the graphite j. The 'channel (i likewise communicates by ducts a of flange a, with the space intermediate the interior of cup at and the exterior of bag c, and consequently with the conduit b. The channel a receives air or other gas under pressure from a pipe k, the compressed air being obtained from any suitable source. The drawing Fig.

2 shows the compressed air being obtained from the service-pipe Z of air-compressor A.

In order to automatically supply the lubricant at predetermined intervals, I lit into the valve-casing c a valve m, whichautomatically connects the conduits Z7 b whenever the lubricant is to be applied and disconnects such conduits whenever the lubricant is to be excluded. As shown in the drawings, the valve m is fitted upon a stem m, provided with an enlargement m which is slidable in a tubular guide m tapped into valve-chamber c. To the stem 'm m is secured a disk n, influenced by a spring 0, which tends to normally draw the valve m down, and to thus close the conduit 19, Fig. 1. The valve may be raised intermittently in various manners, the drawing Fig. 2 showing the stem m in engagement with an eccentric 19, mounted on a shaft 19, which also carries a ratchet-wheel g. This wheel is engaged by a pawl q, fast on a lever g whichis rocked by a suitable linkof the graphite j. The other part of the air will flow through ducts of into the space between cup a and bag 6 and into conduit b. After valve m has been opened an air-current will flow through conduits b 12' into the cylinder at to be lubricated. This air-current carries along small particles of graphite falling through the foraminated bottom 6' of bag 6. During this lubricating process the alternating high and low pressure at both sides of the reciprocating piston d will elfect small vibrations of bag e in order to discharge small particles of graphite through bottom 6' of bag e in the following manner:

- The upwardly-moving piston d is shown in Fig. 2 in a position just before closing duct 17, which is in communication with the highpressure side of cylinder d. After piston d has cleared duct 1) during this upward motion, so that duct b is in communication with the low-pressure side of piston d, an air-jet carrying graphite particles will flow from cup at through ducts b 1) into said low-pressure side of cylinder d. This air-jet will slightly decrease the pressure around bag 6, so that the higher pressure within the bag willexpand the latter and compress springf. After piston d has arrived at its reversing-point the formerly low-pressure side of piston 61, with which duct 1) is still in communication, will change into the high-pressure side. Consequently the pressure in the space around bag e will increase, so that springf distends and thebag will slightly collapse. This operation will take place at each stroke of the piston and results in slight vibrations of the bottom of bag e. In this way small particles of graphite are discharged out of the bag at each stroke of the piston.

In Fig. 3 the vibrations of bag 6 are effected by means of a cam 1", fast on shaft r, that receives rotary motion through pulley r and belt 4 The cam r engages a spindle s, to which the bottom e of bag e is attached. At its upper end spindle s is slidable within a tubular guide 77, of cover h. A spring 15 presses spindle s and also bottom (2 downwardly. It will be seen that the rotation of cam 1" will impart a reciprocating motion to the bottom 6 of bag e in order to discharge the graphite out of the bag.

What I claim is- 1. A lubricator provided with a perforated flexible spring-influenced bag, and means for automatically agitating said bag, substantially as specified.

2. A lubricator provided with a perforated bag, and means for conveying gas under pressure to the bag and from the bag to the point to be lubricated, substantially as specified.

3. A lubricator provided with a perforated bag, means for conveying gas under pressure into said bag, and means for conveying gas under pressure around the bag to the point to be lubricated, substantially as specified.

4. A lubricator provided with a perforated forated seat therein, with a spring-influenced perforated bag within the cup and supported upon said seat, a perforated lid upon the bag, and means for conveying gas under pressure to the cup, substantially as specified.

7. The combination of a cup with a springinfiuenced perforated bag within the cup, means for conveying gas under pressure to the cup, and a conduit for connecting the cup to the part to be lubricated, substantially as specified.

8. The combination of a cup with a springinfiuenced perforated bag within the cup, means for conveying gas under pressure to the cup, a conduit for connecting the cup to the part to be lubricated, a valve for closing the conduit, and means'for automatically operating the valve, substantially as specified.

9. The combination of a cup having a perforated seat therein, with a spring-influenced perforated bag Within the cup and supported upon said seat, a perforated lid upon the bag, means for conveying gas under pressure to the cup, a conduit for connecting the cup to the part to be lubricated, a valve for closing the conduit, and means for automatically operating the valve, substantially as specified.

Signed by me at New York city, (Manhattan,) New York, this 15th day of June, 190-3.

RUDOLF PIELIOKE.

Witnesses:

ARTHUR A. ZIEGE, FRITZ GERB. 

